## FieldDatabase.insert_once_on_mail_merge property

Gets or sets whether to insert data at the beginning of a merge.


```python
@property
def insert_once_on_mail_merge(self) -> bool:
    ...

@insert_once_on_mail_merge.setter
def insert_once_on_mail_merge(self, value: bool):
    ...

```

### See Also

* module [aspose.words.fields](../../)
* class [FieldDatabase](../)